Girl Crazy was the Gershwin musical that introduced Ethel Merman to Broadway audiences. Who knows what upcoming stars may be seen on the stage when the Wingspan Players — a group of 6-11 grade students from the New York City area who are participating in Wingspan Arts Summer Conservatory — present this classic musical that includes some of the Gershwin’s greatest songs, including “I’ve Got Rhythm,” “But Not For Me,” “Embraceable You” and “Treat Me Rough.”